<form class="m-t login_form" role="form" action="{:U('')}" method="post">
    <div class="form-group">
        <input type="text" id="username1" name="username" class="form-control" placeholder="用户名" required="">
    </div>
    <div class="form-group">
        <input type="password" id="password1" name="password" class="form-control" placeholder="密码" required="">
    </div>


    <button type="submit" class="btn btn-primary block full-width m-b">登 录</button>


    <p class="text-muted text-center"> <a href="login.html#">
        <small>忘记密码了？</small></a>
    </p>

</form>